Syringe



Gct. 20, 1931. F. JENSEN 1,828,661

SYRINGE Filed Feb. '7, 1931 e 1,828,6@55 y j y rm'snarcn musea, ornanovna," GERMANgV,

Application filed February 7.1931, Ser'alNo. inGermany A.'lawnuary This invention yrelates to. improvement in vaginal syringes. v 'l Heretofore such syringes have comprised mainly a fluid-conductingtube terminating in a multi-orificed nozzle'and carrying a bell-` shaped plug or shield provided with an opening through which the spent flushing fluid can run` olf. This run-off ropening consists of a straight or curved passage of narrow w bore which is difficult and expensive to form and which is open to the drawback that it can only be hygienically cleaned( andpkeptvr clean by the use of brushes 0r other devices which fit very accurately and require to be operated with great care. Again, the formation of the nozzle with aplurality of orifices represents an unnecessary expense which renders cleaning difficult or next to impossible. 1

There are also known constructions in which the run-oli' opening is formed centrally ofthe plug around the tube. This yarrangement necessitates, however, exact fitting of the several parts so that. the construction 25 is rendered expensive on account of the complicated arrangement. and the opening can only be cleaned after the partshave been taken apartan operation which requires care and is likelyto be omitted, notwithstanding that thorough cleaning is absolutely essential if the device is to be kept free from germs. Y

The present invention has for its object to construct a vaginal syringe with the simplest e 'lar parts 1n the'several figures.

possible means, which can be manufactured cheaply and which can be kept cleaned in the simplest possible manner. y This object is realized in respect that the oriced head of the fluid-conducting tube is 4.0 provided with a single orifice which can be much more easily formed and kept clean than a multi-oricedy head irrespective of whether the orifice is large or small. The run-ofi' opening at the junction of the supply tube andthe plug is constituted by one or more open-topped channels in one of the said parts.

Such channel can be formed either in the outer wall of the tube or in the wall of the bore formed in thev plug for passage ofthe .5o tube. In either case the channel or channels or arey fully exposed after-the tubeis l l drawn from the plug so'that there is=no7 obstacleto thorough hygienic cleaning Vwithi if! out thel employment of special cleaning instruments. on the tube itself, the plug will be formed Y with; only a hole for passage of the tube. If,

however, the open channel is formed in the plug, the wall of the tube will be smooth'. Y

When kthe tube is fitted to theplug the chan- 60,`V` nel; :presents a passage through which the spent fluid runs ofi". At least one channel may be formed in the tube and at least one channel may yalso be formed inv theplug. Y 'c 65 Y As the run-offfopening is located in either case close to the tube in the use of the syringe the spent fluid runs along the'tube and wouldl I i run alonv the tube the tube a simple rubber ring lwhichcauses thefluid'to'drip 01T at this point. f In the accompanying drawings therel are illustratedtwo embodiments Vof the invention. I Fig. l is a Vlongitudinal section and Fig. 2 a transverse section of a construction in which the open channel is formed in the wall ofth tube. Fig. 3 is a longitudinal section'and Fig. 4g. so; f a transversesection of a construction in which I the chann'el'zis formed in thephole in theplug Y serving for'passageof the tube. f e' p. Thesame reference numerals denotesimif. f s In the form shown 4i Figs. 1 and 2 the plug' 1 has'a single hole which receives the tube i3I f v the rear 1end of which is formed jfwith a bulb.- 'p ous portion lor equivalentfor 'connection tof" a hose fluid. 1 Y

The front or delivery end of the'tube is'l y formed with a single delivery orifice which can Vbe l produced more -re'adily- "andmore cheaply and kept cleaner than' the plurality 95 of orifices provided in the nozzle heretofore used. The spent fluid. runs off through the v passage 6, which7 as shown infFigs.-1 fan-d2, is constituted by an open channel formedin the outer wall of the tube and extending over 10035;' y n 'e If such open channel is formed g the hose or thelike for supplying withiluid".` Thereis'slippedonto 70 "or other deviceffor the supply ofte@l i at least the length of the plug. In this form Vthe plug has only the smooth hole 2 for yreception of the tube. In the construction according to Figs. 3

and 4 the open channel 6 is formed in the. hole of the plug so that the tube has a smooth outer surface. Y y

Depending on the nature. of the material constituting the plug and tube (soft or hard m rubber, glass, Celluloid, or the like) theehanl nels 6 or 6 may be appliedr to` or formed in;v tegral with the tube, or the bulb. If so dei sired, the stock from which the tube is formedmay be channelled so that the tube cut E the said stockwill have a channel extending over" j its entire length.

In ordento` cause thespentiuiuilv to drop ofi'` the end vof the tube connected tothe hose, l there is slipped over'rthe lattera rubber ring 204 7 which inayalso serve to retain theV hose on *the bulb 4 as shown in `Eig.`

Instead of afsingle 'open channel, such as the channels 6 or 6, there may be providedA several such channels inthe Wall of the tube or infthewall of the hole ofthe plug. Itis desirable that the'cross-seetional area of the run-off vopening or openings be less than the totalcross-sectional area ofthe delivery oriice :in thev tuber so that super-pressure may 30 be set up inf the vagina during the use of the "syringe anda better flushing eifect be obl `What Iclaim as my invention and desire to 'secure by Letters Patent of theQUnited States, is: Y Q

l. A syringe comprising a plugvhaving a passage through it and a tube extending through the passages in the'plug, the Vtube havingon its outer face a longitudinallyvex 40 4,tending groove forming a longitudinally eX- tendifng straight channel open at both ends and vgreater in length. than the length of the plug, the plug being longitudinally shiftable upon the tube to a Vposition Where it Will en` a tirely .close one end of the channel or partially close this end. y'

2. A syringe comprising a plug yofsoft rubber tapering towardone end,"a tube of hard rubber extending longitudinally through the I plug, the' plug being shiftable upon thetube longitudinally whereby the Y plug` and tube may be'reinoved freni engagementwith each other, the confronting faces'v ofthe plugand tube being ,formed to provide a longitudinally extending "groove constituting a straight'reflux' channel opening upon the inner andV outer faces of the plug.

In rktestimony WhereofI have hereuntoy aff fixed iny signature.`

FRIEDRICH JENSEN. 

